diff --git a/HARK/interpolation.py b/HARK/interpolation.py
index 22714b4b5..2ad3e24b7 100644
--- a/HARK/interpolation.py
+++ b/HARK/interpolation.py
@@ -1038,6 +1038,9 @@ def _evaluate(self, x):
                     + x[out_top] * self.coeffs[self.n, 1]
                     - self.coeffs[self.n, 2] * np.exp(alpha * self.coeffs[self.n, 3])
                 )
+
+                y[x == self.x_list.min()] = self.y_list.min()
+                
         return y
 
     def _der(self, x):